Solid-alcohol burner.



A. STROBL.v

SOLID ALCOHOL BURNER.

APPLICATION men JAN-19 191s.

Patented May 28,1918.

Witnesses 1 with the cover or cap removed;

ALEXANDER STROBL, OF NEW YORK, N. Y. ASSIGNOR T0 S. STEBINAU & COMPANY, INC., A CORPORATION OF NEW YORK.

SOLID-ALCOHOL BURNER.

To all whom it may concern:

Be it known that I, ALEXANDER S'rRoBL, a subject of'the King of Hungary, and a resident of the borough of Manhattan, city, county, and State of New York, have invented a certain new and useful Solid-A100- hol Burner, of which the following is a specification.

This invention relates to burners or to devices for burning solid hydrocarbon fuel, such as solid alcohol. In an application for patent filed by me, February 11, 1915, Serial No. 7503, I describe one form of solid alcohol which can be utilized in the burner forming the subject matter of this application.

The objects of the invention are First: To produce a burner which will have improved efficiency.

Second: To reduce the period of time necessary, after the fuel is ignited, to cause the llolurner to give off the maximum amount of eat.

These and further objects will more fully appear from the following specification and accompanying drawings, considered together or separately.

The drawings illustrate one'embodiment of the invention.

Figure 1 is a top view of the burner;

Fig. 2 is a section on the line 22 of Fig.

Fig. 3 is a similar view showing the cap in place; and

Figs. 4 and 5 are detail views of modificaw tions.

In all views, like parts are designated by the same reference characters.

According. to the embodiment chosen for illustration,there isa receptacle 1. This receptacle is shown as ofcylindrical shape, closed .on the sides and bottom. Within the receptacle is a solid hydrocarbon fuel 2. Associated with the receptacle is a chimney 3. This chimney is vertically arranged, preferably over the center of the receptacle. It preferably extends down into the receptacle. The purpose of the chimney is. to create a draft in the ascending burning products of combustion. I prefer to make the chimney conical, as shown, which will have the effect of converging the flame. It will also have, to some extent, the function of increasing the velocity of the escaping hot products of combustion so that the efficiency of the burner is increased. Associated with Specification of Letters Patent.

Patented May 28, 1918.

Application filed January 19, 1915. Serial No. 3,022.

the chimney is an annular opening 4 for admitting air to the interior of the receptacle. I have illustrated this opening as outside of the chimney as the best and most efficient arrangement. This annular opening is defined on its inner side'by the chimney 3. Its outer edge is defined by a wall 5. This wall is shown as separate from the side of the receptacle. In order to suspend the chimney suitable devices are employed, those illustrated comprising supports 6, 6, connecting the wall 5 and chimney. Outside of the wall 5 is shown an annulus 7 connecting the wall to the receptacle. The width of this annulus may be made as wide as desired. For the purpose of preventing evaporation of the volatile constituents of the hydrocarbon when the burner is not in use, I employ the cover 8, see Fig. 3. This cover as shown, has a reentrant lower edge ending in a flange and makes a close fit with the wall 5. When the cover is in place the chimney 3 and annular opening 4 are inclosed.

The fuel is introduced into the receptacle, and there is nothing in the receptacle above the top of the fuel. The interior of the receptacle therefore contains no wicks or screens necessary to burn liquid fuel, but on the contrary the interior of the receptacle above the fuel and below the chimney is entirely unencumbered.

In operation, upon the hydrocarbon being ignited, the products of combustion will pass upward through the chimney 3 and air will be drawn down through the annular opening 4:. This air will support combustion inside of the receptacle. The air will enter the receptacle in the form of a cylindrical column. The velocity of the inrushing air will carry the flame to the surface of the fuel. The flame therefore will be in close contact with the fuel throughout the entire surface of the latter. For this reason the fuel will very quickly melt and the volatile hydrocarbons which produce combustion will be more rapidly given off. The burner therefore will not only produce an eficient and more intense flame after it has been burning for some time, but it will be brought to its maximum efficiency very rapidly. This rapidity, of reaching its maximum efl'iciency, is increasedby the flame being supported on the surface of the liquid where heat will be radiated and raise the temperature of the side walls of the receptacle. The radiant be inclose contact with that surface,

chimney 3 is inserted in yits'zplace.

the receptacle -1 to form a unitary structure.

Fig. 4 shows the --receptaole l as having-its mouth as large as its greatest diameter and the chimney 3 is supported by an annulus 7 and a bead 9. When placed on the market the can is closed by an ordinary friction or other co'verQ lVhen'it i's'desired to use the burner "the "cover is removed and the When it is desired to extinguish the flan-re a cap similar to that shownin Fig. 3 is placed in position over the chimney to engage the wall 5* and as the annulus 7 makes 'an air tight joint with the "can it will be hermetically sealed.

I In Fig. 5 is shown a casing 10 in which the'receptacle is placed after its cover has been removed. The casing is provided at its upper edge with screw-threads 11 and the chimney 3 is provided with'a depending flange similarly threaded which will engage the first mentioned threads. The chimhey 3.may have a cap like that shown in Fig. 3. The 'can shown in Fig. 5 is provided with an annulus 7 b and 'a depending wall 5 for the reception of an 'air tight cover. It will be seen that the chimneys shown iii-Figs. 4: and 5 may be sold separately from the receptacle and one chimney may be used on any nuber of burners.

. With the receptacleshown in Fig. 4: it will '-be possible, on account of its unrestricted'moutlnto recharge the can 'by insertin g a charge of solid alcohol having the same size of the can.

The chimney shown in Fig. 4 may be applied directlyto the can shown in Fig. 5 by engagement :of' the wall -5 of the chimney with the wall '5 of'the can. 1

Itis obvious that various modificati' ns may be made without departing fromthe spirit or scope'of my invention.

In additionto the appara-tusabove 'described, my invention also comprises the novel method by means of which the solid hydrocarbon is: burned in an inclosed vessel.

accordance with the provisions of the patent statutes, I have descrihed theprihciple of any invent-ion, together with "the aippaa'atus' which I new ecnsi'dertc represent the best embodiment thereof; but I desire to have it understood that the apparatusf hq is merely ans-attireaaa aat the invention'may be carried out in other "taole being unencumbered above the top of the fuel and below the chimneyua 2. A burner comprising a'r'e'ce'ptacle open at the top,"=a solid hydrocarbon fuel within the receptacle, a "chimney associated with the opening and of less diameter than the opening, said chimney being FcOni cal inShaPe and of less diameter at thetopthafn at the bottom, a wall concentricf't'o the chimney-and outside thereof, producing an aijijnular openiirg between the'chimnfey and the vi all'l, the inside of the receptacle'being'unencumbered above the top'of the fuel T and below the chimney and wall whereby ='c'onihu'stiohwifll be supported 'on' the entire exposed surraee of the fuel. a

3. Abur ne-r comprising a rec ejptacle open at the 'toppanannulus at the top, a sol-id hydrocarbon #fuel within the ceapacie, a

depending wall supported by'the a ehimneyconc'entricwith the wall, supports for the chinmey carried by 'the'wallfsai'd Wall and "chimney "producing an annular "opening "concentric to the chimney, the in-'' terior of urerecept'aeleucirrgentir ly unen- "oum'bered ato've "the top "of 'the 'fuelWand below the chimney and walhwh'eleby the air will be directed tosupport combustion on the entire exposed surface of the fuel-irre" spective'of the level of the fitel.

4. A burnerhompri'sihg areeeptaciecpen at the top,a solid -hydrocarbon fuel within the receptacle, a removable chi-inne'y associated with the opening andfofless diameter than the opening, providing an anaarar orifice outside ofthe chihmey, saidorifice di- 'frecting the an to supper-t eomeasaai "on the"enti're exposed surface of thefuel, the

inside "of the'recepta'c l'e being unencumbered above the "top of the reel 'airdhelo'w the chimney. y p

r A turner comprising-a receptacle t b al at the top, a solid hydrocarbbh within the receptacle, a chimney supported within the opening and of less diameter than'the opening", providing an annular orifice buts'ide of the chimney, 'saidtorific'e directing the air to support combustion on the entire exposed surface ofth'e rue-1, the i'nsi'debf the receptacle being unencumbered above the inside of the receptacle being unencumbered top of the fuel and below the chimney; above the top of the fuel and below the 6. A burner comprising a receptacle open chimney. at the top, a solid hydrocarbon fuel within This specification signed and witnessed 5 the receptacle, a removable chimney supthis ninth day of January, 1915.

ported within the opening and of less diame- ALEXANDER STROBL ter than the opening, providing an annular orifice outside of the chimney, said'orifice Witnesses: directing the air to support combustion on LEONARD H. DYER, 10 the entire exposed surface of the fuel, the HARRY Pros'r.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

